Huawei Modem Unlocker V5.7.7 ◆ 〈VALIDATED〉

If you haven't already, plug the modem into your USB port. Let Windows install the default drivers. Alternatively, use the official Huawei driver installer (usually found on the modem’s virtual CD drive).

Pros:

Cons:

As of 2025, the golden age of simple unlockers is fading. Huawei has largely exited the consumer modem market due to US sanctions, focusing on 5G industrial equipment. Modern 5G routers (like the H122-373) use hardware-level root of trust. Huawei Modem Unlocker v5.7.7 will not work on these.

However, for the millions of used E8372s and E5573s sold on eBay and Facebook Marketplace, this tool remains a gold standard. It represents a time when users had the right to repair and modify their own hardware without paying a ransom to carriers.

Once detected, you will see fields for "Old Algo" and "New Algo."

Manual Method (If Auto-unlock fails): Click "Read IMEI." Copy the IMEI into the top box. Click "Calculate Code." Copy the 8-digit or 16-digit code.